Service difficulty report · None · Boeing 7378H4

Difficulty date
March 7, 2022
Submitted
March 24, 2022
Operation
Air carrier
Aircraft
N8307K
Make and model
Boeing 7378H4
Aircraft serial
36987
Aircraft time
32,756 hours, 14,736 cycles
Part
None
Condition
Cracked
Location
L/H Fuselage
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

EVIDENCE OF CRACK ON LEFT INBOARD FAN COWL LOWER FORWARD LATCH AT RIVET HOLE. HFEC VERIFIED; CRACK MEASURES .750 IN LENGTH AND IS MARKED. / [01] ACCOMPLISHED HFEC COUNTERSINK INSP AND SURFACE INSP PER NDT 53-30-00 PROC 3 AND 51-00-00 PROC. 23 CONFIRMED CRACK IS IN THE SKIN STARTS AT FASTENER HOLE AND EXTENDS .750';[02] CHEMICALLY REMOVED PAINT ON AREA IAW SRM 51-20-01. REMOVED FASTENER IAW SRM 51-40-02. VERIFIED CRACK PER HFEC 51-00-00 PROCEDURE 23 AND COUNTERSINK HFEC PROCEDURE . COWL IS TO BE REPLACED WITH SERIVICABLE COWL ON ROUTINE CARD #TTG8Q00AYMWC;[03] C/W INSPECTION

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